Packaging and packaging blank

ABSTRACT

The invention provides a packaging comprising opposing and spaced apart front and back panels separated by side panels extending therebetween, wherein a marginal sealing region of each end of the front and back panels is sealed together and wherein at least a portion of an edge of at least one end of the side panels is not connected to the marginal sealed regions of the front and back panels, and, wherein the panels are formed from cartonboard.

CROSS REFERENCE TO RELATED APPLICATION

This application is a divisional of U.S. patent application Ser. No.15/037,041, filed May 16, 2016, which is a U.S. national phaseapplication of International Application No. PCT/IB2014/002795, filedNov. 24, 2014, which claims benefit from United Kingdom Applications1320803.8, filed Nov. 26, 2013 and 1410937.5, filed Jun. 19, 2014, whichare hereby incorporated by reference in their entireties.

TECHNICAL FIELD OF THE INVENTION

The present invention relates to cartonboard-based packaging and blanksfor the same. The invention also relates to methods of forming packagingfrom packaging blanks and filled packaging.

BACKGROUND TO THE INVENTION

It is known to provide so-called flow-wrap packaging which consists of aflexible container comprising front and back panels, side panels, andsealed at either end, normally with crimping or embossing to providepatterned sealing portions.

In general, this type of flow-wrap packaging is manufactured byhorizontal or vertical form, fill and seal processes. In horizontalfill, form and seal processes flexible packaging film is run throughmachinery which folds the material around a product and then clamps andseals the ends of the folded material followed by cutting, to provide asealed packaging. Such packaging can be run through appropriatemachinery relatively rapidly, in order to produce many filled packagesper minute.

Conversely, there are many types of cartonboard-based packaging whichare formed from cartonboard blanks, and folded to provide a packagingcontainer which may then be sealed by appropriate means. Examples ofcartonboard cardboard packaging include standard cartonboard boxes,shelf-ready packaging and the like for example.

Up to now, it has not been thought possible to provide cartonboard-basedpackaging which mimics the shape and appearance of flow-wrappedpackaging made by standard horizontal or vertical form, fill and sealprocesses.

It would therefore be advantageous to provide a cartonboard-packagingwhich mimics the shape and appearance of standard flow-wrap packaging,whilst being economical and simple to produce from cartonboard blanks,preferably using standard cartonboard packaging apparatus.

In addition, it would be advantageous to provide cartonboard packagingin which the crimped or patterned end fin portions of flow-wrappedpackaging are present, in order to provide a generally authenticflow-wrap look to the cartonboard packaging, and which are easy to opendespite the increased thickness of the material compared to standardfilm seals.

It is therefore an aim of embodiments of the present invention toovercome or mitigate at least some of the problems of the prior art.

SUMMARY OF THE INVENTION

According to a first aspect of the present invention there is provided apackaging comprising opposing and spaced apart front and back panelsseparated by side panels extending therebetween, wherein a marginalsealing region of each end of the front and back panels is sealedtogether and wherein at least a portion of an edge of at least one endof the side panels is not connected to the marginal sealed regions ofthe front and back panels, and wherein the panels are formedsubstantially from cartonboard.

In some embodiments at least a portion of an edge of an end of both sidepanels is not connected to the marginal sealed regions. In yet otherembodiments at least a portion of an edge of both ends of both sidepanels is not connected to the marginal sealed regions.

In some embodiments at least one end of at least one side panel or bothside panels comprises at least one cut-out region or aperture, the edgeor edges of which are not connected to the marginal sealed regions ofthe front and back panels.

In some embodiments at least one end of at least one side panel or bothside panels comprises a plurality of cut-out regions or apertures, theedge or edges of which are not connected to the marginal sealed regionsof the front and back panels.

In some embodiments each of the panels consists essentially ofcartonboard, but may include minor amounts of other materials such as alaminated film on one or both sides thereof, printed material or thelike, for example.

The marginal regions of the front and back panels may be sealed by wayof a reclosable seal or a peelable seal. The seal may be formed by wayof a peelable adhesive, which may be re-sealable adhesive, such as aheat-sensitive adhesive, a cold seal adhesive, or the like, for example.In alternative embodiments, or in addition to use of an adhesive, theseal may be formed from a weld, such as a peelable weld.

In other embodiments the marginal regions of the front and back panelsmay be sealed by means of a mechanical seal such as a zip lock, fingerpress sealing strip, grip seal of the like, for example.

In some embodiments a re-sealing tab may be provided for securing themarginal regions together after initial opening. The tab may have anadhesive on at least one face by means of which the tab is secured tothe outside of the marginal portions or front or back panel to coupleand secure the portions together.

The sealed marginal portions may be crimped or embossed along at least aportion thereof and in some embodiments along substantially the whole ofthe marginal portions. Crimping or embossing the sealed marginalportions, in addition to the configuration of the overall structure ofthe packaging enables the cartonboard packaging to look identical orsubstantially identical to equivalent polymeric flow-wrap packagingformed by conventional horizontal or vertical fill, form and sealprocesses.

The side panels may comprise substantially planar panels. In otherembodiments the side panels may comprise a crease or fold-line extendingtherealong. By providing side panels comprising fold lines extendingtherealong, this may enable the packaging to be substantially flattenedbefore filling with a product, during storage and transport, or togradually flatten after products are removed therefrom.

In some embodiments the end regions of the side panels comprise gabledend regions. The gabled end regions of the side panels may comprise acrease or fold-line. In some embodiments the gabled end region comprisesa quadrilateral panel comprising a triangular or V-shaped fold-lineconfiguration. This configuration enables the gabled end region to foldbetween the front and back panels, in use, in order to provide thepartially sealed end regions of the packaging, whilst enabling the sidepanels to remain substantially perpendicular to the front and backpanels.

The inclusion of at least a portion of an edge of the side panels whichis not connected to the sealed marginal regions enables a user to pushhis or her fingers against the end of the side panel to gain greaterleverage in pushing apart the sealed ends of the front and back panels.If an opening or cut-out is present in the edge, this gives a userfurther room to insert his or her fingers.

According to a second aspect of the invention there is provided apackaging comprising opposing and spaced apart front and back panelsseparated by side panels extending therebetween, a region at each end ofthe side panels comprising a gusseted region, wherein a marginal regionof each end of the front and back panels is sealed together and with thegusseted region of the side panels form sealed end regions of thepackaging, and wherein the panels are formed substantially fromcartonboard.

In some embodiments each of the panels consists essentially ofcartonboard, but may include minor amounts of other materials such as alaminated film on one or both sides thereof, printed material or thelike, for example.

The marginal region of each end of the front and back panel may comprisean integral marginal region or a fin region connected or integral withthe panels.

The marginal regions of the front and back panels may be sealed by wayof a reclosable seal or a peelable seal. The seal may be formed by wayof a peelable adhesive, which may be re-sealable adhesive, such as aheat-sensitive adhesive, a cold seal adhesive, or the like, for example.In alternative embodiments, or in addition to use of an adhesive, theseal may be formed from a weld, such as a peelable weld.

In other embodiments the marginal regions of the front and back panelsmay be sealed by means of a mechanical seal such as a zip lock, fingerpress sealing strip, grip seal of the like, for example.

In some embodiments a re-sealing tab may be provided for securing themarginal regions together after initial opening. The tab may have anadhesive on at least one face by means of which the tab is secured tothe outside of the marginal portions or front or back panel to coupleand secure the portions together.

The sealed marginal portions may be crimped or embossed along at least aportion thereof and in some embodiments along substantially the whole ofthe marginal portions. Crimping or embossing the sealed marginalportions, in addition to the overall structure of the packaging enablesthe cartonboard packaging to look identical or substantially identicalto equivalent polymeric flow-wrap packaging formed by conventionalhorizontal or vertical fill, form and seal processes.

The side panels may comprise substantially planar panels. In otherembodiments the side panels may be gusseted and may comprise a crease orfold-line extending therealong, which may be contiguous with themarginal gusseted region of the side panels. Gusseted side panels mayenable the packaging to be flattened before filling with a product,during storage and transport, or to gradually flatten after products areremoved therefrom.

The marginal, gusseted region of the side panels may comprise a creaseor fold-line, and may include a triangular fold configuration extendingfrom the crease or fold-line. This configuration enables the marginal,gusseted region to fold between the front and back panels, in use, inorder to provide the sealed end regions of the packaging, whilstenabling the side panels to remain substantially orthogonal to the frontand back panels.

The packaging may comprise fins extending along at least a portion ofthe junction of the front and back panels and side panels. The fins maybe formed from a crease or fold line in the front and back panels and/orside panels adjacent the join between the front and back panels and theside panels.

According to a third aspect of the invention there is provided apackaged product comprising a packaging of the first or second aspectsof the invention containing at least one product or item.

The product or item may be a food item, which may comprise a secondarypackaging such as a wrapper or the like, for example. The food item maybe a confectionery item, bakery item, fruit, vegetable, meat, cheese,snack item, or the like. Suitable confectionery items include chocolate,chocolate products, candy, chewing gum or a combination thereof, forexample. Suitable bakery items may include biscuits, cookies, chips,crisps, dough-based products or the like. There may be a single fooditem or a plurality of food items, and there may be a combination ofdifferent food items, such as a combination of confectionery and bakeryitems, or of different confectionery items, for example. In someembodiments the food item is a block or bar of chocolate.

According to a fourth aspect of the present invention there is provideda packaging blank comprising front and back panels having opposing sideedges and connected by a first side panel extending therebetween via afold-line, one of the front and back panels also being connected to asecond side panel extending along the opposite edge of the front or backpanel to that connected to the first side panel via a fold-line, whereinthe front and back panels include marginal sealing regions extendingfrom each end thereof, and wherein at least a portion of an edge of atleast one end of the side panels is not connected to the sealing regionsat the ends of the front and back panels, and wherein each of the front,back and first and second side panels are formed substantially fromcartonboard.

In some embodiments at least a portion of an edge of at least one end ofboth side panels is not connected to the marginal sealed regions, and insome embodiments at least a portion of an edge of both ends of both sidepanels is not connected to the marginal sealing regions.

In some embodiments there is provided a region at one or both ends ofthe side panels comprising at least one fold line, and in someembodiments there may be a plurality of fold lines in at least one ofthe end regions of the side panels. In other embodiments there isprovided a plurality of fold lines in each end region of the sidepanels. There may be provided three fold lines in the end region of eachside panel which forms a triangular fold-line assembly.

In some embodiments at least one edge of at least one end of the sidepanels may comprise at least one aperture or cut-out region locatedtherein. The at least one aperture or cut-out region may comprise anaperture or cut-out region along a portion of the length of the at leastone fold line, for example. In other embodiments the at least oneaperture/cut-out region may be located on a free edge of the end regionof the side panel.

In some embodiments there is provided more than one aperture or cut-outregion in at least one of the end regions of the side panels. Theplurality of apertures/cut-out regions may include both anaperture/cut-out region along a portion of the length of the at leastone fold line, and an aperture or cut-out region located on a free edgeof the end region of the side panel, for example.

In some embodiments at least one of the or each fold lines located inthe end regions of the side panels comprises an aperture or cut-outregion located along at portion of its length. In other embodiments allof the fold lines located within the end regions of the side panelscomprise apertures/cut-out regions.

The blank may comprise one or more securement tabs or flaps, arranged toenable securement of the blank in a folded configuration after foldingof the blank, in use. The securement tabs or flaps may comprise adhesivemeans, such as glue, adhesive, or the like, which may be thermaladhesive.

According to a fifth aspect of the invention there is provided apackaging blank comprising front and back panels having opposing sideedges and connected by a first side panel extending therebetween via afold-line, one of the front and back panels also being connected to asecond side panel extending along the opposite edge of the first or backpanel to that connected to the first side panel via a fold-line, whereinthe first and second side panels comprise a gusseted region at each endthereof, and wherein the front and back panels include sealing regionsat the ends thereof, at least a portion of the gusseted region of theside panels being adjacent to the sealing regions, and wherein each ofthe front, back and first and second side panels are formedsubstantially of cartonboard.

The sealing regions may comprise a region of the front and back panelsdefined by a crease or fold-line.

In some embodiments the gusseted regions of the side panels comprise acrease or fold-line extending therealong and may include a triangularfold arrangement extending from the crease or fold-line. The crease orfold-line may be located adjacent to the sealing regions of the frontand back panels and may extend substantially the same distance as thelongitudinal length of the sealing regions.

The blank may comprise one or more securement tabs or flaps, arranged toenable securement of the blank in a folded configuration after foldingof the blank, in use. The securement tabs or flaps may comprise adhesivemeans, such as glue, adhesive, or the like, which may be thermaladhesive.

According to a sixth aspect of the invention there is provided a methodof forming a packaging of the second aspect of the invention using ablank of the fourth or fifth aspect of the invention, comprising thesteps of:

-   -   a) providing a blank of the fourth or fifth aspect of the        invention;    -   b) folding and securing the front panel, back panel, and first        and second side panels to form a tubular container; and    -   c) sealing the sealing regions of the front and back panels to        form a sealed packaging.

In embodiments using a blank of the fourth aspect of the invention, stepc) may comprise sealing the sealing regions of the front and back panelsto form a partially sealed packaging comprising marginal sealed regionsat each end, wherein at least a portion of an edge of at least one endof the side panels is not connected to the marginal sealed regions atthe ends of the packaging.

In some embodiments the sealing regions are then crimped or embossed toform patterned sealing regions.

In some embodiments the method may further comprise placing at least oneitem on the inside surface of the front or pack panel before step b) orat least one item is placed in the container or packaging after step b).

DETAILED DESCRIPTION OF THE INVENTION

In order that the invention may be more clearly understood embodimentsthereof will now be described, by way of example only, with reference tothe accompanying drawings, in which;

FIG. 1 illustrates a blank in accordance with the fourth aspect of theinvention for an embodiment of a packaging of the invention;

FIG. 2 is a perspective view of the packaging of the invention formedfrom the blank of FIG. 1.

FIG. 3 is a perspective view of the packaging of the invention formedfrom the blank of FIG. 1.

FIG. 4 illustrates a blank in accordance with the fifth aspect of theinvention for an embodiment of a packaging of the invention;

FIG. 5 is a perspective view of the packaging of the invention formedfrom the blank of FIG. 4.

A blank 2 of an embodiment of a packaging of the present invention willnow be described with reference to FIG. 1. The blank 2 is formed fromcartonboard and comprises a front panel 4 and a back panel 6 eachcomprising opposite longitudinal edges. Extending between the edges ofthe front and back panels 4, 6 is a first side panel 8 integrally formedwith front and back panels 4, 6 and connected via fold lines 12, 14.Integrally formed with the opposite edge of the front panel 4 to whichthe first side panel 8 is connected is a second side panel 10 extendingtherealong, connected to the front panel 4 by fold line 16. Integrallyformed with the opposite edge of the second side panel 10 to which thefront panel 4 is connected is a securement tab 18. The securement tab 18is connected to the edge of the second side panel 10 by fold line 20.

At the longitudinal ends of the front panel 4 and the back panel 6 areend regions 22, 24 at a first end, and end regions 26, 28 at theopposite end. The end regions 22, 24, 26, 28 are defined on the front 4and rear 6 panels by respective fold lines 32, 34, 36, 38. Integrallyformed with each end region 22, 24, 26, 28 are respective marginalsealing regions 42, 44, 46, 48 connected to their respective end region22, 24, 26, 28 by fold lines 52, 54, 56, 58. The marginal sealingregions 42, 44, 46, 48 extend outwardly from their respective endregions 22, 24, 26, 28.

The first side panel 8 and second side panel 10 are provided with endregions 60, 62, 64, 66 at the ends thereof. End regions 60, 62 arelocated adjacent to the end regions 22, 24 and end regions 26, 28respectively of the front and rear panels 4, 6. End regions 64, 66 arelocated adjacent to the end region 22 and end region 26 respectively ofthe front panel 4. The side panel end regions 60, 62, 64, 66 includerespective apertures 68, 68′, 68″, 68″′ at a point along theirrespective free edges 72, 74, 76, 78. Furthermore, each side panel endregion 60, 62, 64, 66 includes a triangular fold-line assembly 70, 70′,70″, 70″′.

A method of forming an embodiment of a packaging 100 in accordance withthe present invention, using the blank as illustrated in FIG. 1, willnow be described with reference to FIGS. 1 to 3.

Initially, the front and rear panels 4, 6 are folded along the foldlines 12, 14 such that they are spaced apart and opposing, whilst beingperpendicular to the first side panel 8.

The second side panel 10 is subsequently folded along fold line 16 suchthat it too is orientated perpendicular to both the front panel 4 andthe rear panel 6. Fold line 20 is also folded such that securement tab18 is located within the volume defined by the front and rear panels 4,6. In the illustrated embodiment, securement tab 18 is provided with anadhesive means such as an adhesive strip, a cold seal adhesive, hot meltadhesive or the like, and this is adhered to the inside the rear panel 6in order to secure the front panel 4, rear panel 6, and side panels 8,10 in a substantially tubular configuration.

In other embodiments the order of folding of the side panels 8, 10 andfront 4 and back 6 panels may be performed in a different order, such asone side panel 8, 10 being folded about its respective fold lines 12,14, 16, 20 before the front 4 and back 6 panels are folded, for example.

The end regions 22, 24, 26, 28 of the front and rear panels 4, 6 arebrought together by folding fold lines 32, 34, 36, 38. In doing so,sealing regions 42, 44 and 46, 48 are brought together also. Marginalsealing regions 42, 46 of the front panel 4 are secured to thecorresponding marginal sealing regions 44, 48 of the back panel 6 bypressing them together. An adhesive strip 200 is applied to at least oneof the sealing regions at each end of the packaging 100. The adhesivestrip 200 may comprise a hot melt adhesive or other suitable adhesive.As the marginal sealing regions 42, 46 and 44, 48 are pressed together,end regions 60, 62, 64, 66 of the first and second side panels 8, 10fold about their respective triangular fold-line assemblies 70, 70′,70″, 70″′ to form gabled end regions 102, 104, 106, 108 having openingsformed therein by apertures 68, 68′, 68″, 68″′ along the respective freeedges 72, 74, 76, 78 of end regions 60, 62, 64, 66. The triangular foldline assemblies 70, 70′, 70″, 70″′ enable the folding of the end regions60, 62, 64, 66 without affecting the orientation of the first and secondside panels 8, 10 which remain substantially perpendicular to the frontpanel 4 and rear panel 6.

Gabled end region 102, as illustrated in FIG. 3, also comprises afurther opening 202. This further opening 202 is formed by providing anaperture/cut-out region in the end region 60 of side panel 8. Thisaperture/cut-out region may be provided along at least a portion of thelength of one of the fold lines forming the triangular fold lineassembly 70. Further apertures/cut out regions may be provided along thelength of one or both of the other two fold lines forming the fold lineassembly 70.

Although illustrated as only providing an opening 202 within gabled endregion 102, it is to be appreciated that further openings may beprovided in at least one further gabled end region 104, 106, 108. Thesefurther openings may be formed by providing apertures/cut-out regionsalong at least a portion of the length of at least one fold line formingtriangular fold line assemblies 70′, 70″, 70″′.

As the marginal sealing regions 42, 44, 46, 48 are secured together,they may also be embossed using suitable sealing jaw patterns, in orderto provide an embossed pattern. In alternative embodiments, an image ofan embossing pattern may be printed on the marginal sealing regions 42,44, 46, 48 in place of actual embossing of the regions.

In use, while the packaging 100 is in the substantially tubularconfiguration described hereinabove, and after one end of the tubularconfiguration has been sealed, as illustrated in FIG. 3, the open end ofthe packaging 100 can be utilised to fill the packaging 100 withproducts or items such as, for example, confectionery or bakery items.In alternative embodiments, the interior of the packaging may beprovided with an item, such as a bar or a tablet of chocolate, placed onthe inside surface of the front panel 4 or back panel 6 before thepackaging 100 is folded to the final, sealed configuration.

In alternative embodiments of the packaging blank/packaging shown inFIGS. 1 to 3, the marginal sealing regions 42, 44, 46 and 48 may beprovided with a thermo-sealant layer, such as a polyethylenethermo-sealant which is used as an adhesive. Any adhesive may be formedfrom adhesive strips directly deposited on to the sealing regions,laminated film or the like.

In yet other embodiments, the first and second side panels 8, 10 may beprovided with a fold-line along the entire length thereof, so that theentirety of the first 8 and/or second 10 side panels can be folded inorder to enable the packaging to fold relatively flat before or duringuse. Any fold-line extending along the entirety of the first and secondside panels 8, 10 may also be used to provide non-planar shape to thefirst and second side panels 8, 10.

In still further embodiments, some of the components, such as the sidepanels 8, 10 and end regions 22, 24, 26, 28 may be connected to ratherthan integral with the front panel 4 and back panel 6, and may beadhered or secured via suitable adhesive means. In some embodiments,some of the components, such as sealing regions 42, 44, 46, 48 and/orend regions 60, 62, 64, 66 may be connected to rather than integral withthe end regions 22, 24, 26, 28 or the side panels 8, 10 respectively,and may be adhered or secured via suitable adhesive means.

In yet further embodiments, at least one of the fold lines forming eachof the triangular fold line assemblies 70, 70′, 70″, 70″′ may comprisean aperture located therein to form further openings in the gabled endregions 102, 104, 106, 108 of the formed packaging 100.

FIG. 4 illustrates a blank 302 of another embodiment of a packaging ofthe present invention. The blank 302 is formed from cartonboard andcomprises a front panel 304 and back panel 306 each comprising oppositelongitudinal edges. The front 304 and back 306 panels are substantiallyrectangular in shape. Extending between edges of the front 304 and back306 panels is a first side panel 308 which is integrally formed with thefront 304 and back 306 panels. Connected to the opposite edge of thefront panel 304 to which the first side panel 308 is connected is asecond side panel 310 extending therealong. The first side panel 308 isseparated from the front panel 304 and back panel 306 via fin regions315 and 319 respectively, formed via respective fold-lines 313, 313′ andfold-lines 317, 317′, arranged in use to form the fin regions 315, 319.Likewise, the second side panel 310 is connected to the front panel 304via a fin region 323 formed between fold lines 321, 321′, which arearranged to fold and form the fin region 323 in use. A fin region 325also extends along the free edge of the back panel 306, formed from afold-line 327. At the distal edge of the fin 325 is a securement tab318, arranged in use to be secured beneath the second side panel 310 inuse.

At the longitudinal ends of the front panel 304 and back panel 306 aremarginal sealing regions 342, 344 at one end and marginal sealingregions 346, 348 at the other end. The sealing regions 342, 344, 346,348 extend up to the fin regions 323, 315, 319 and 325. The extent ofthe sealing regions 342, 344, 346, 348 is defined by transversefold-lines 352, 354, 356, 358 extending across the front panel 304 andback panel 306 towards the longitudinal ends thereof.

The first side panel 308 and second side panel 310 are provided withgusseted regions 362, 364, 366, 368 at the ends thereof. The gussetedregions 362, 364, 366, 368 include a central fold-line 349, 349′, 349″,349″′ extending from the distal edge thereof and ending in a triangularfold-line assembly 370, 370′, 370″, 370″′, The fold-lines 349, 349′,349″, 349″′ extend along the first 308 and second 310 side panels to adistance substantially identical to the length of the sealing portions342, 344, 346, 348 of the front 304 and back 306 panels.

The back panel 306 also includes a securement tab 318 arranged to beadhered to the second side panel 310 in use.

Formation of the embodiment of the packaging 300 shown in FIG. 5 fromthe blank 302 will now be described.

Firstly the front panel 304 and rear panel 306 are folded along thefold-lines 313 and 317 such that the front 304 and rear 306 panel arespaced apart and opposing, and perpendicular to the first side panel308. The first side panel 308 is then folded about the longitudinalfold-lines 313′, 317′ such that the fins 315, 319 are formed and thefirst side panel 308 rests below the peripheral edges thereof.

The second side panel 310 is then folded about the fold-line 321 andfold-line 321′ in order to provide the fin region 323, and orient thesecond side panel 310 perpendicular and beneath the front 304 and back306 panels. The fold-line 327 extending along the free edge of the backpanel 306 is then folded, and the securement tab 318 folded between theinterior formed by the front panel 304 and back panel 306, and thesecond side panel 310. The securement flap 318 is provided with anadhesive means such as an adhesive strip, a cold seal adhesive, hot meltadhesive or the like, and this is adhered to the inside the second panel310, in order to secure the front panel 304, back panel 306 and firstand second side panels 308, 310 in a substantially tubularconfiguration.

In other embodiments the order of folding of the side panels 308, 310and front 304 and back 306 panels may be performed in a different order,such as one side panel 308, 310 being folded about its respective foldlines 313′, 317′, 321, 321′ before the front 304 and back 306 panels arefolded, for example.

In order to seal the ends of the now substantially tubular packaging300, the sealing regions 342 and 346 of the front panel 304 are securedto the sealing regions 344, 348 of the back panel 306 and pressedtogether to seal the regions together. Hot melt adhesive or othersuitable adhesive is applied to at least one of the sealing regions ateach end of the packaging 300. As the regions 342, 346 and sealingregions 344, 348 are pressed together, the gusseted regions 362, 364,366, 368 of the first and second side panels 308, 310 fold about thegusset fold lines 349, 349′, 349″, 349″′, in order that the packaging300 is fully sealed at each of the four corners formed at the edge ofthe sealing regions 342, 344 and sealing regions 346, 348. Thetriangular gusset assembly 370, 370′, 370″ and 370″′ enables the foldingof fold-lines 349, 349′, 349″, 349″′ without affecting the orientationof the first and second side panels 308, 310 substantially perpendicularto the front panel 304 and rear panel 306.

As with the embodiment illustrated in FIGS. 1 to 3, many variations arepossible, and include, but are not limited to the following.

As the sealing regions 342, 344, 346, 348 are secured together, they mayalso be embossed using suitable sealing jaw patterns, in order toprovide an embossed pattern as shown in FIG. 5. The resultant fullyformed packaging 300 is as shown in FIG. 5. In alternative embodiments,an image of an embossing pattern may be printed on the sealing regions342, 344, 346, 348 in place of actual embossing of the regions.

In use, while the packaging 300 is in the substantially tubularconfiguration described hereinabove, and after one end of the tubularconfiguration has been sealed, the open end of the packaging 300 can beutilised to fill the packaging 300 with products or items such as, forexample, confectionery or bakery items. In alternative embodiments, theinterior of the packaging may be provided with an item, such as a bar ora tablet of chocolate, placed on the inside surface of the front panel304 or back panel 306 before the packaging 300 is folded to the final,sealed configuration.

In alternative embodiments of the packaging shown in FIGS. 4 and 5, thesealing portions 342, 344, 346, 348 may be provided with athermo-sealant layer, such as a polyethylene thermo-sealant which isused as an adhesive. Any adhesive may be formed from adhesive stripsdirectly deposited on to the sealing regions, laminated film or thelike.

In yet other embodiments, the first and second side panels 308, 310 maybe provided with a gusset fold-line along the entire length thereof, sothat the entirety of the first 308 and or second 310 side panels can befolded in order to enable the packaging to fold relatively flat beforeor during use. Any gusset fold-line extending along the entirety of thefirst and second side panels 308, 310 may also be used to providenon-planar shape to the first and second side panels 308, 310.

In still further embodiments, some of the components, such as thesealing regions, side panels 308, 310 and gusset regions 362, 364, 366,368 may be connected to rather than integral with the front panel 304and back panel 306, and maybe adhered or secured via suitable adhesivemeans.

The use of end sealing regions 342, 344, 346, 348, combined with gussetportions 362, 364, 366, 368 of the side panels 308, 310, or end regions22, 24, 26, 28 of the front and rear panels 4, 6 and marginal sealingregions 42, 44, 46, 48, combined with end portions 60, 62, 64, 66 of theside panels 8, 10 enables a cartonboard packaging to be manufactured andconstructed which can mimic the shape and orientation of a flexibleflow-wrap packaging manufactured by standard horizontal or verticalform, fill and seal processes.

In addition, the presence of the peripheral fin portions 315, 319, 323,325 extending upwardly from along the longitudinal edges of the frontpanel 304 and rear panel 306 as illustrated in FIGS. 4 and 5 enable thecartonboard packaging 300 of the invention to appear to be manufacturedusing flexible flow-wrap technologies, whilst maintaining stability andrigidity in order that the packaging 300 of the invention can be stoodsecurely along its first and second side panels 308, 310.

Furthermore, the packaging 100, 300 maybe decorated in any suitablemanner with branding and artwork, which will enable masking thecartonboard appearance, further helping to give the packaging theimpression of being produced in a flow-wrap process.

The above embodiments are described by way of example only. Manyvariations are possible without departing from the scope of theinvention as defined in the appending claims.

The invention claimed is:
 1. A packaging formed from a single unitaryblank of cartonboard and comprising opposing and spaced apart front andback panels separated by side panels extending therebetween, a region ateach end of the side panels comprising a gusseted region, wherein amarginal region of each end of the front and back panels is sealedtogether and with the gusseted regions of the side panels form sealedend regions of the packaging, and the packaging comprises fins extendingalong junctions of the front and back panels with the side panels,wherein a first pair of the fins projecting in a first direction from afirst of the side panels and a second pair of the fins projecting in asecond direction from a second of the side panels, and wherein the firstand second directions are different, wherein the first pair of fins haveparallel segments, and wherein the second pair of fins have parallelsegments.
 2. A packaging as claimed in claim 1 wherein the marginalregion of each end of the front and back panel comprises an integralmarginal region or a fin region connected or integral with the panels.3. A packaging as claimed in claim 1 wherein the side panels aregusseted and comprise a crease or fold-line extending therealong.
 4. Apackaging as claimed in claim 1 wherein the marginal gusseted region ofthe side panels comprises a crease or fold-line.
 5. A packaging asclaimed in claim 1 wherein the marginal regions of the front and backpanels are sealed by way of a peelable or reclosable adhesive.
 6. Apackaging as claimed in claim 1 wherein the sealed marginal regions ofthe front and back panels are crimped or embossed along at least aportion thereof.
 7. A packaged product comprising packaging of claim 1containing at least one product or item.
 8. A packaged product asclaimed in claim 7 wherein the product or item is a food item selectedfrom a confectionary item, bakery item, fruit, vegetable, meat, cheese,beverage, powdered food, powdered beverage and snack item.
 9. A unitarypackaging blank for forming a packaging as claimed in claim 1, the frontand back panels having opposing side edges and connected by the firstside panel extending therebetween via a fold-line, one of the front andback panel also being connected to the second side panel extending alongthe opposite edge of the front or back panel to that connected to thefirst side panel via a fold-line, wherein the first and second sidepanels comprise the gusseted region at each end thereof and wherein thefront and back panels include the sealing end regions at each endthereof, at least a portion of the gusseted region of the side panelsbeing adjacent to the sealing end regions, the blank further comprisinga first fin panel extending between the first side panel and the frontpanel and connected thereto by respective fold lines, a second fin panelextending between the first side panel and the rear panel and connectedthereto by respective fold lines, a third fin panel extending betweenthe second side and the one of the front and rear panels and connectedthereto by respective fold lines, and a fourth fin panel extending alonga free edge of the other of the front and rear panels and connectedthereto by a fold line.
 10. A unitary packaging blank as claimed inclaim 9 comprising a securement tab extending along a distal edge of thefourth fin panel and connected thereto by a fold line to enablesecurement of the blank in a folded configuration after folding of theblank.
 11. A packaging as claimed in claim 1 wherein the first directionis opposite the second direction.
 12. A packaging formed from a singleunitary blank of cartonboard and comprising opposing and spaced apartfront and back panels separated by side panels extending therebetween, aregion at each end of the side panels comprising a gusseted region,wherein a marginal region of each end of the front and back panels issealed together and with the gusseted regions of the side panels formsealed end regions of the packaging, and the packaging comprises finsextending along junctions of the front and back panels with the sidepanels, wherein a first pair of the fins projecting in a first directionfrom a first of the side panels and a second pair of the fins projectingin a second direction from a second of the side panels, and wherein thefirst and second directions are different, wherein the first pair of thefins extend along the entirety of the length of the first of the sidepanels and the second pair of the fins extend along the entirety of thelength of the second of the side panels.